[llvm] [VPlan] Remove redundant x && (y && x) -> x && y combine (PR #213219)

[Ramkumar Ramachandra via llvm-commits]

https://github.com/artagnon commented:

Hm, interesting innovation, but I think it could lead to confusion due to the existing design of PatternMatch?

https://github.com/llvm/llvm-project/pull/213219